Waveplates

Waveplates

We provide standard (air-spaced) and high power (optically bonded) wave plates. They are made from materials that has a birefringence property. Most common types are designed so ordinary ray would exhibit half (λ/2) or quarter (λ/4) wave retardation

STA Series Waveplates

1. Crystalline Quartz Waveplates

waveplate waveplate

Features

  • High extinction ratio
  • Wide wavelength range
  • Low transmitted wavefront distortion
  • High LIDT

Crystalline quartz waveplates are made from materials that have a birefringence property. Most common types are designed so that an ordinary ray will exhibit a half (λ/2) or quarter (λ/4) wave retardation with respect to an extraordinary ray. Such waveplates are used to rotate the plane of polarization, converting a linear polarization to a circular one and vice versa. Such elements are used for electro-optic modulations and as a variable ratio beam splitter when used in conjunction with a polarization cube. Although the latter two types of waveplates are the most common, we also offer custom retardation values on request.

One of the most common arrangements of the waveplates is the zero order (ZO) air-spaced version. These waveplates are built of two crystalline quartz plates with specific thicknesses and crossed axes, which results in a zero order performance. This arrangement allows us to reach a better performance for a wider wavelength range and is less sensitive to temperature changes when compared with low order (LO) waveplates. High purity crystalline quartz materials and precise parallelism between the two air-spaced plates allows the transmitted wavefront distortion to be better than λ/10 at 632.8 nm.

Zero Order Crystalline Quartz Waveplates (air-spaced)

Typical Items Ø12.7 x 6 mm

Wavelength nm Part number Part number
λ/2 retardation, clear aperture >8mm λ/4 retardation, clear aperture >8mm
343 STA-2-CPW-ZO-L2-0343-S STA-2-CPW-ZO-L4-0343-S
355 STA-2-CPW-ZO-L2-0355-S STA-2-CPW-ZO-L4-0355-S
400 STA-2-CPW-ZO-L2-0400-S STA-2-CPW-ZO-L4-0400-S
515 STA-2-CPW-ZO-L2-0515-S STA-2-CPW-ZO-L4-0515-S
532 STA-2-CPW-ZO-L2-0532-S STA-2-CPW-ZO-L4-0532-S
800 STA-2-CPW-ZO-L2-0800-S STA-2-CPW-ZO-L4-0800-S
1030 STA-2-CPW-ZO-L2-1030-S STA-2-CPW-ZO-L4-1030-S
1064 STA-2-CPW-ZO-L2-1064-S STA-2-CPW-ZO-L4-1064-S

Typical Items Ø25.4 x 6 mm

Wavelength nm Part number Part number
λ/2 retardation, clear aperture >18mm λ/4 retardation, clear aperture >18mm
266 STA-2-CPW-ZO-L2-0266 STA-2-CPW-ZO-L4-0266
343 STA-2-CPW-ZO-L2-0343 STA-2-CPW-ZO-L4-0343
355 STA-2-CPW-ZO-L2-0355 STA-2-CPW-ZO-L4-0355
400 STA-2-CPW-ZO-L2-0400 STA-2-CPW-ZO-L4-0400
515 STA-2-CPW-ZO-L2-0515 STA-2-CPW-ZO-L4-0515
532 STA-2-CPW-ZO-L2-0532 STA-2-CPW-ZO-L4-0532
633 STA-2-CPW-ZO-L2-0633 STA-2-CPW-ZO-L4-0633
780 STA-2-CPW-ZO-L2-0780 STA-2-CPW-ZO-L4-0780
800 STA-2-CPW-ZO-L2-0800 STA-2-CPW-ZO-L4-0800
852 STA-2-CPW-ZO-L2-0852 STA-2-CPW-ZO-L4-0852
1030 STA-2-CPW-ZO-L2-1030 STA-2-CPW-ZO-L4-1030
1064 STA-2-CPW-ZO-L2-1064 STA-2-CPW-ZO-L4-1064
1550 STA-2-CPW-ZO-L2-1550 STA-2-CPW-ZO-L4-1550

* Customized solutions are available on request.

2. High Energy Waveplates

We provide standard (air-spaced) and high power (optically bonded) wave plates. They are made from materials that has a birefringence property. Most common types are designed so ordinary ray would exhibit half (λ/2) or quarter (λ/4) wave retardation with respect to an extraordinary one. Such wave plates are used to rotate the plane of polarization, convert linear polarization to circular and vice versa. Such elements are used for electro-optic modulation and as a variable ratio beam splitter, when used in conjunction with a polarization cube. Although latter two types of wave plates are the most common, we offer custom retardation values on request.

waveplate

Features

  • High extinction ratio
  • Wide acceptance angle
  • Wide temperature bandwidth
  • Exceptional durability in UV applications
  • Wide wavelength range available
Product ID Product ID Product ID
Wavelength, nm λ/2 retardation,

clear aperture >8mm
λ/2 retardation, clear aperture >18mm λ/4 retardation, clear aperture >18mm
266 ST2-CPW-TSO-L2-0266 ST2-CPW-T4O-L4-0266-W
343 ST2-CPW-TFO-L2-0343-S ST2-CPW-TFO-L2-0343-W ST2-CPW-TTO-L4-0343-W
355 ST2-CPW-TFO-L2-0355-S ST2-CPW-TFO-L2-0355-W ST2-CPW-TSO-L4-0355-W
400 ST2-CPW-TFO-L2-0400-S ST2-CPW-TFO-L2-0400 ST2-CPW-TSO-L4-0400
515 ST2-CPW-TZO-L2-0515-S ST2-CPW-TFO-L2-0515 ST2-CPW-TSO-L4-0515
532 ST2-CPW-TZO-L2-0532-S ST2-CPW-TFO-L2-0532 ST2-CPW-TFO-L4-0532
780 ST2-CPW-TFO-L4-0780
800 ST2-CPW-TZO-L2-0800-S ST2-CPW-TZO-L2-0800 ST2-CPW-TFO-L4-0800
1030 ST2-CPW-TZO-L2-1030-S ST2-CPW-TZO-L2-1030 STST2-CPW-TFO-L4-1030
1064 ST2-CPW-TZO-L2-1064-S ST2-CPW-TZO-L2-1064 ST2-CPW-TFO-L4-1064
1550 ST2-CPW-TZO-L2-1550-S ST2-CPW-TZO-L2-1550 ST2-CPW-TZO-L4-1550

* Customized solutions are available on request.

3. S-waveplates (Radial Polarization Converters)

S-waveplate is a space-variant retarder that converts linear polarization to radial or azimuthal polarization. The product is unique for its high damage threshold, which exceeds that of alternative devices by 100 times. Unique results are achieved through the formation of subwavelength nanogratings inside fused silica glass. The enabling technology was developed by Prof. Peter G. Kazansky’s group in the Optoelectronics Research Centre at the University of Southampton.

Vector beams can be beneficial in polarization-sensitive applications. For example, a radially polarized beam is more efficient at drilling and cutting high-aspect-ratio features in metals. Vector beams are also applicable in optical tweezers, laser micromachining, STED microscopy and two-photon-excitation fluorescence microscopy.

waveplate

Standard S-waveplate models are available for 343 nm, 354 nm, 488 nm, 515 nm, 532 nm, 632 nm, 800 nm, 1030 nm, 1064 nm and 1550 nm wavelengths (with custom wavelengths available on request). Dielectric anti-reflection coatings can be applied on both converter sides.

  • Material: UVFS, IRFS
  • Substrate dimensions: Ø25.4 x 3 mm
  • Surface quality, S-D: 20-10
  • Surface flatness, P-V: <λ/8 @ 632.8 nm
  • Clear aperture: Ø2 – Ø15 mm
  • Wavelength options: 343 nm – 3 µm
Operational wavelength, nm Clear aperture, mm Transmission of uncoated, % Product ID of uncoated Transmission of AR coated, % Product ID of AR coated
343 2 >80 STA-RPC-343-02 >87 STA-RPC-343-02-AR
4 STA-RPC-343-04 STA-RPC-343-04-AR
6 STA-RPC-343-06 STA-RPC-343-06-AR
8 STA-RPC-343-08 STA-RPC-343-08-AR
10 STA-RPC-343-10 STA-RPC-343-10-AR
15 STA-RPC-343-15 STA-RPC-343-15-AR
355 2 >80 STA-RPC-355-02 >87 STA-RPC-355-02-AR
4 STA-RPC-355-04 STA-RPC-355-04-AR
6 STA-RPC-355-06 STA-RPC-355-06-AR
8 STA-RPC-355-08 STA-RPC-355-08-AR
10 STA-RPC-355-10 STA-RPC-355-10-AR
15 STA-RPC-355-15 STA-RPC-355-15-AR
488 2 >85 STA-RPC-488-02 >92 STA-RPC-488-02-AR
4 STA-RPC-488-04 STA-RPC-488-04-AR
6 STA-RPC-488-06 STA-RPC-488-06-AR
8 STA-RPC-488-08 STA-RPC-488-08-AR
10 STA-RPC-488-10 STA-RPC-488-10-AR
15 STA-RPC-488-15 STA-RPC-488-15-AR
515 2 >90 STA-RPC-515-02 >97 STA-RPC-515-02-AR
4 STA-RPC-515-04 STA-RPC-515-04-AR
6 STA-RPC-515-06 STA-RPC-515-06-AR
8 STA-RPC-515-08 STA-RPC-515-08-AR
10 STA-RPC-515-10 STA-RPC-515-10-AR
15 STA-RPC-515-15 STA-RPC-515-15-AR
532 2 >90 STA-RPC-532-02 >97 STA-RPC-532-02-AR
4 STA-RPC-532-04 STA-RPC-532-04-AR
6 STA-RPC-532-06 STA-RPC-532-06-AR
8 STA-RPC-532-08 STA-RPC-532-08-AR
10 STA-RPC-532-10 STA-RPC-532-10-AR
15 STA-RPC-532-15 STA-RPC-532-15-AR
632 2 >92 STA-RPC-632-02 >99 STA-RPC-632-02-AR
4 STA-RPC-632-04 STA-RPC-632-04-AR
6 STA-RPC-632-06 STA-RPC-632-06-AR
8 STA-RPC-632-08 STA-RPC-632-08-AR
10 STA-RPC-632-10 STA-RPC-632-10-AR
15 STA-RPC-632-15 STA-RPC-632-15-AR
780 2 >92 STA-RPC-780-02 >99 STA-RPC-780-02-AR
4 STA-RPC-780-04 STA-RPC-780-04-AR
6 STA-RPC-780-06 STA-RPC-780-06-AR
8 STA-RPC-780-08 STA-RPC-780-08-AR
10 STA-RPC-780-10 STA-RPC-780-10-AR
15 STA-RPC-780-15 STA-RPC-780-15-AR
800 2 >92 STA-RPC-800-02 >99 STA-RPC-800-02-AR
4 STA-RPC-800-04 STA-RPC-800-04-AR
6 STA-RPC-800-06 STA-RPC-800-06-AR
8 STA-RPC-800-08 STA-RPC-800-08-AR
10 STA-RPC-800-10 STA-RPC-800-10-AR
15 STA-RPC-800-15 STA-RPC-800-15-AR
1030 2 >92 STA-RPC-1030-02 >99 STA-RPC-1030-02-AR
4 STA-RPC-1030-04 STA-RPC-1030-04-AR
6 STA-RPC-1030-06 STA-RPC-1030-06-AR
8 STA-RPC-1030-08 STA-RPC-1030-08-AR
10 STA-RPC-1030-10 STA-RPC-1030-10-AR
15 STA-RPC-1030-15 STA-RPC-1030-15-AR
1064 2 >92 STA-RPC-1064-02 >99 STA-RPC-1030-02-AR
4 STA-RPC-1064-04 STA-RPC-1030-04-AR
6 STA-RPC-1064-06 STA-RPC-1030-06-AR
8 STA-RPC-1064-08 STA-RPC-1030-08-AR
10 STA-RPC-1064-10 STA-RPC-1030-10-AR
15 STA-RPC-1064-15 STA-RPC-1030-15-AR
1550 2 >92 STA-RPC-1550-02 >99 STA-RPC-1550-02-AR
4 STA-RPC-1550-04 STA-RPC-1550-04-AR
6 STA-RPC-1550-06 STA-RPC-1550-06-AR
8 STA-RPC-1550-08 STA-RPC-1550-08-AR
10 STA-RPC-1550-10 STA-RPC-1550-10-AR
15 STA-RPC-1550-15 STA-RPC-1550-15-AR

4. Achromatic (Broadband) Waveplates

Achromatic (broadband) waveplates (AWP) are pair of crystalline quartz and magnesium fluoride plates of controlled thickness with crossed fast axes to create a λ/2 or λ/4 delay in the broad wavelength range. The difference in dispersion between materials allows the arrangement of a slow phase shift over a broad wavelength range.

Achromatic waveplates are needed for various devices, such as tunable laser sources, multiple laser line systems, and other broad-spectrum sources. Achromatic (Broadband) waveplates could be used to replace a number of single-wavelength quartz waveplates, making your system more convenient and easier to use.

waveplate

  • Material: Crystalline Quartz + MgF₂
  • Surface quality, S-D: 20/10*
  • Transmitted wavefront distortion, P-V: <λ/8 @ 632.8 nm*
  • Retardation tolerance @ 20°C: ±λ/100
  • Clear aperture: Ø5 – 76.2 mm
  • AR coatings: Ravg<0.75% on each surface
  • LIDT: >5 J/cm² @ 1064 nm, 10 ns, 10 Hz
  • Mounting: Black anodized metal
Wavelength, nm Product ID Product ID
λ/2 retardation, clear aperture >8 mm λ/4 retardation, clear aperture >8 mm
340-560 STA-2-APW-L2-008Z STA-2-APW-L4-008Z
450-650 STA-2-APW-L2-008A STA-2-APW-L4-008A
550-750 STA-2-APW-L2-008B STA-2-APW-L4-008B
650-1100 STA-2-APW-L2-008C STA-2-APW-L4-008C
λ/2 retardation, clear aperture >12 mm λ/4 retardation, clear aperture >12 mm
340-560 STA-2-APW-L2-012Z STA-2-APW-L4-012Z
450-650 STA-2-APW-L2-012A STA-2-APW-L4-012A
550-750 STA-2-APW-L2-012B STA-2-APW-L4-012B
650-1100 STA-2-APW-L2-012C STA-2-APW-L4-012C
λ/2 retardation, clear aperture >18 mm λ/4 retardation, clear aperture >18 mm
340-560 STA-2-APW-L2-018Z STA-2-APW-L4-018Z
450-650 STA-2-APW-L2-018A STA-2-APW-L4-018A
550-750 STA-2-APW-L2-018B STA-2-APW-L4-018B
650-1100 STA-2-APW-L2-018C STA-2-APW-L4-018C

STH Series Waveplates

Waveplate Part # (λ/100 Bandwidth)
λ/2 @532 nm
Acceptance Angle Damage Threshold
Low order Waveplate STH-WPL 0.55nm (T=0.5060
mm)
Med. 1GW/cm2
Zero Order Cemented STH-WPC 19.22nm
(ΔT=0.0145 mm)
Low ~ 10MW/cm2
Optically Contracted STH-WPO 19.22nm
(ΔT=0.0145 mm)
Low ~200 MW/cm2
Air Spaced STH-WPA 19.22nm (ΔT=0.0145 mm) Low ~500 MW/cm2
True Zero Order Waveplate Cemented STH-WPF 19.22nm (T=0.0145 mm) High ~ 10MW/cm2
Single Plate STH-WPS 19.22nm (T=0.0145 mm) High > 1GW/cm2
Achromatic Waveplate STH-WPB 250 nm Low 10MW/cm2
Dual Wavelength Waveplate STH-WPD Very Small Low

1. Low Order Waveplates

Low (multiple) order waveplate is designed to give a retardance of several full waves, plus the desired fraction. This result in a single, physically robust component with desired performance. However, even small changed in wavelength or temperature will result in significant changes in the desired fractional retardance. They are less expensive and find use in many applications where the increased sensitivities are not an important.

Material Quartz
Wavelength Range 200~2300 nm,
Dimension Tolerance +/-0.1mm
Surface Quality 20 / 10
Parallelism <1 arc Sec
Retardation Tolerance < λ/300
Clear Aperture >90%
Damage Threshold >500 MW/cm2
Coating AR coating
Mount Black Anodized Aluminium

Standard Wavelength:

355nm, 532nm, 632.8nnm, 780nm, 808nm, 850nnm, 980nm, 1064nm, 1310nm, 1480nm, 1550nm

Ordering Information

Quarter Waveplates P/N# Half Waveplates P/N# Diameter (∮mm )
ST-WPL410 STH-WPL210 10
ST-WPL412 STH-WPL212 12.7
ST-WPL415 STH-WPL215 15
ST-WPL420 STH-WPL220 20
ST-WPL425 STH-WPL225 25
ST-WPL430 STH-WPL230 30

2. Zero Order Waveplates

The zero order waveplate is designed to give a retardance of zero full waves, plus the desired fraction. Zero order waveplate shows better performance than multiple order waveplates. It has broad bandwidth and a lower sensitivity to temperature and wavelength changes. It should be considered for more critical applications.

Material Quartz
Wavelength Range 200~2300 nm,
Dimension Tolerance +/-0.1mm
Surface Quality 20 / 10
Parallelism <1 arc Sec
Retardation Tolerance < λ/500
Clear Aperture >90%
Damage Threshold >500 MW/cm2
Coating AR coating
Mount Black Anodized Aluminium

Standard Wavelength:

355nm, 532nm, 632.8nnm, 780nm, 808nm, 850nnm, 980nm, 1064nm, 1310nm, 1480nm, 1550nm

2.1 Zero Order Waveplates-Optically Contacted

This type of zero order waveplate is constructed of two low order waveplate with their axes crossed. Thus, the effect of the first plate is cancelled by the second, except for the residual difference between them.

  • Optically contacted
  • AR coated, R<0.2%
  • High damage threshold
  • Better temperature band width
  • Wide wavelength bandwidth
Quarter Waveplates P/N # Half Waveplates P/N # Diameter (∮mm )
ST-WPO410 STH-WPO210 10
ST-WPO412 STH-WPO212 12.7
ST-WPO415 STH-WPO215 15
ST-WPO420 STH-WPO220 20
ST-WPO425 STH-WPO225 25
ST-WPO430 STH-WPO230 30

2.2 Zero Order Waveplates - Cemented by Epoxy

This type of zero order waveplate is constructed of two low order waveplate with their axes crossed. Thus, the effect of the first plate is cancelled by the second, except for the residual difference between them.

  • Cemented by epoxy
  • AR coated, R<0.2%
  • Better temperature band width
  • Wide wavelength bandwidth
Quarter Waveplates P/N # Half Waveplates P/N # Diameter (∮mm )
STH-WPC410 STH-WPC210 10
STH-WPC412 STH-WPC212 12.7
STH-WPC415 STH-WPC215 15
STH-WPC420 STH-WPC220 20
STH-WPC425 STH-WPC225 25
STH-WPC430 STH-WPC230 30

2.3 Zero Order Waveplate - Air Spaced

  • Air spaced
  • Double retardation plates
  • AR coated, R<0.2%
  • High damage threshold
  • Better temperature band width
  • Wide wavelength bandwidth
Quarter Waveplates P/N # Half Waveplates P/N # Diameter (∮mm )
STH-WPA410 STH-WPA210 10
STH-WPA412 STH-WPA212 12.7
STH-WPA415 STH-WPA215 15
STH-WPA420 STH-WPA220 20
STH-WPA425 STH-WPA225 25
STH-WPA430 STH-WPA230 30

3. True Zero Order Waveplates

Material Quartz
Wavelength Range 200~2300 nm,
Dimension Tolerance +/-0.1mm
Surface Quality 20 / 1 0
Parallelism <1 arc Sec
Retardation Tolerance < λ/300
Clear Aperture >90%
Damage Threshold >500 MW/cm2
Coating AR coating
Mount Black Anodized Aluminium

3.1 True Zero Order Waveplate-Single Plate

This type of zero order waveplate is designed for high damage threshold applications (more than 1GW/cm2). As the plate is very thin, it's easy to break during operation.

  • Wide angle acceptance
  • Better temperature bandwidth
  • Wide wavelength bandwidth
  • High damage threshold
  • AR coated, R<0.2%
  • Single plate

Standard Wavelength:

  • 1/2:1310nm, 1480nm, 1550nm
  • 1/4:980nm, 1064nm,1310nm, 1480nm, 1550nm
Quarter Waveplates P/N # HalfWaveplate P/N # Diameter (∮mm )
STH-WPS410 STH-WPS210 10
STH-WPS412 STH-WPS212 12.7
STH-WPS415 STH-WPS215 15
STH-WPS420 STH-WPS220 20
STH-WPS425 STH-WPS225 25
STH-WPS430 STH-WPS230 30

3.2 True Zero Order Waveplate – Cemented

This type of zero order waveplate is constructed of a true zero order waveplate and a BK7 substrate. As the waveplate is very thin and easy to be damaged, the Bk7 plate's function is to strengthen the waveplate.

  • Standard thickness:1.1±0.2mm
  • Cemented by epoxy
  • Wide angle acceptance
  • Better temperature bandwidth
  • Wide wavelength bandwidth
  • AR coated, R<0.2%

Standard wavelength:

532nm, 632.8nm, 780nm, 808nm,980nm, 1064nm,1310nm, 1480nm, 1550nm

Quarter Waveplates P/N # HalfWaveplate P/N # Diameter (∮mm )
STH-WPF410 STH-WPF210 10
STH-WPF412 STH-WPF212 12.7
STH-WPF415 STH-WPF215 15
STH-WPF420 STH-WPF220 20
STH-WPF425 STH-WPF225 25
STH-WPF430 STH-WPF230 30

4. Achromatic Waveplate

Achromatic waveplate is made from two different substrate materials such as crystal quartz and magnesium fluoride. For the single material waveplates the working wavelength is very limited because of the dispersion of the material. While two different kinds of material are used achromatic waveplate, the dispersions of the birefringence are also different. Hence such waveplate is not sensitive to the wavelength change.

Material Quzrtz+MgF2
Wavefront Distortion 350~2100 nm,
Dimension Tolerance +/-0.1mm
Surface Quality 20 / 10
Paralllelism <1 arc Sec
Retardation Tolerance < λ/100
Clear Aperture >90%
Damage Threshold >500 MW/cm2
Coating AR Coating
Mount Black Anodized Aluminium

Standard Wavelength:

460-650nm, 550-750nm, 650-1000nm, 900-2100nm

Quarter Waveplates P/N# Half Waveplates P/N# Diameter (∮mm )
STH-WPB410 STH-WPB210 10
STH-WPB412 STH-WPB212 12.7
STH-WPB415 STH-WPB215 15
STH-WPB420 STH-WPB220 20
STH-WPB425 STH-WPB225 25
STH-WPB430 STH-WPB230 30

5. Dual Wavelength Waveplate

Dual wavelength waveplate is a multiple waveplate that provides a speciic retardance at two different wavelengths, it's particularly useful when used in conjunction with other polarization sensitive components to separate coaxial laser beams of different wavelength.

Material Quartz
Wavefront Distortion 350~2100 nm,
Dimension Tolerance +/-0.1mm
Surface Quality 20 / 10
Parallelism <1 arc Sec
Retardation Tolerance < λ/100
Clear Aperture >90%
Damage Threshold >500 MW/cm2
Coating AR Coating
Mount Black Anodized Aluminium
Quarter Waveplates P/N# Half Waveplates P/N# Diameter (∮mm )
STH-WPD410 STH-WPD210 10
STH-WPD412 STH-WPD212 12.7
STH-WPD415 STH-WPD215 15
STH-WPD420 STH-WPD220 20
STH-WPD425 STH-WPD225 25
STH-WPD430 STH-WPD230 30

6. Polarization Rotator

Due to the rotation activity of natural quartz crystal, it also can be used as polarization rotators so that the plane of input linearly polarized beam will be rotated at special angle which is determined by the thickness of quartz crystal.

  • Made of quartz, 200-2500nm
  • Up to 50.8mm diameter
  • Custom rotation angle available
  • RoHS Compliant
Material Crystal Quartz 200-2500nm
Dimension Tolerance ±0.2mm
Rotation Accuracy <5 arc minutes
Parallelism <10 arc seconds
Wavefront Distortion λ/4@632.8nm
Surface Quality 20/10 scratch and dig
Rotation clockwise and counter-clockwise
Coating AR coating available, R<0.25%@central wavelength